var lmsg="";

function validate_mobile(formname)
{
var msg
msg=""
if((formname.mobile.value=="") || (checkInternationalPhone(formname.mobile.value)==false))
{
msg += "Please Enter a valid Contact number. : \n";
}
if(!(msg==""))
{
lmsg+="Kindly Provide Valid Information For the Following Fields:\n";
lmsg+="__________________________________________________________\n";
lmsg+="\n";
lmsg+=msg;
lmsg+="__________________________________________________________\n";
alert(lmsg);
lmsg="";
msg="";
return false;
}
return true;
}
function validate_phone(formname)
{
var msg
msg=""
if(formname.std.value=="")
{
msg += "Please Enter a STD Code. : \n";
}
if(formname.phone.value=="")
{
msg += "Please Enter a Phone Number. : \n";
}
if(!(msg==""))
{
lmsg+="Kindly Provide Valid Information For the Following Fields:\n";
lmsg+="__________________________________________________________\n";
lmsg+="\n";
lmsg+=msg;
lmsg+="__________________________________________________________\n";
alert(lmsg);
lmsg="";
msg="";
return false;
}
return true;
}
//-->
var digits = "0123456789";
// non-digit characters which are allowed in phone numbers
var phoneNumberDelimiters = "()- ";
// characters which are allowed in international phone numbers
// (a leading + is OK)
var validWorldPhoneChars = phoneNumberDelimiters + "+";
// Minimum no of digits in an international phone no.
var minDigitsInIPhoneNumber = 10;

function isInteger(s)
{   var i;
    for (i = 0; i< s.length; i++)
    {   
        // Check that current character is number.
        var c = s.charAt(i);
        if (((c < "0") || (c > "9"))) return false;
    }
    // All characters are numbers.
    return true;
}
function trim(s)
{   var i;
    var returnString = "";
    // Search through string's characters one by one.
    // If character is not a whitespace, append to returnString.
    for (i = 0; i < s.length; i++)
    {   
        // Check that current character isn't whitespace.
        var c = s.charAt(i);
        if (c != " ") returnString += c;
    }
    return returnString;
}
function stripCharsInBag(s, bag)
{   var i;
    var returnString = "";
    // Search through string's characters one by one.
    // If character is not in bag, append to returnString.
    for (i = 0; i < s.length; i++)
    {   
        // Check that current character isn't whitespace.
        var c = s.charAt(i);
        if (bag.indexOf(c) == -1) returnString += c;
    }
    return returnString;
}

function checkInternationalPhone(strPhone)
{
var bracket=3;
strPhone=trim(strPhone);
if(strPhone.indexOf("+")>1)
 return false;
if(strPhone.indexOf("-")!=-1)
 bracket=bracket+1;
if((strPhone.indexOf("(")!=-1) && (strPhone.indexOf("(")>bracket))
return false;
var brchr=strPhone.indexOf("(");
if((strPhone.indexOf("(")!=-1) && (strPhone.charAt(brchr+2)!=")"))
return false;
if((strPhone.indexOf("(")==-1) && (strPhone.indexOf(")")!=-1))
return false;
s=stripCharsInBag(strPhone,validWorldPhoneChars);
return (isInteger(s) && s.length >= minDigitsInIPhoneNumber);
}